Who discovered it?: Johann Gottlobb Lehmann
Where was it discovered?: Beryozovskoye Mine in the Ural Mountains
How was it discovered?: It was found in a mine
Flammable?: No
Reaction with other things?: No
Interesting facts and details: The red colour in rubies is from a small amount of chronium
Atomic Number- 24
Atomic Mass- 51. 9961
Number of protons- 24
Number of neutrons- 27
Number of electrons- 24
Group- 6
Melting point- 1907 C
Boiling point- 2671 C
State- Solid
Density- 7.19 g.cm
Metal
Colour of element: Grey/Silver
Who discovered it?: Johann Gottlobb LehmannWhere was it discovered?: Beryozovskoye Mine in the Ural Mountains
How was it discovered?: It was found in a mine
Flammable?: No
Reaction with other things?: No
Interesting facts and details: The red colour in rubies is from a small amount of chronium
I got my information and the photo from:
http://en.wikipedia.org/wiki/Chronium